BRACKET AS 3651720 - Caterpillar

At operating temperature, the hydraulic oil tank is hot and under pressure. Hot oil can cause burns. Remove the fill cap on the hydraulic oil tank only when the engine is stopped, and the fill cap is cool enough to touch with your bare hand.
1. Release the pressure in the hydraulic system by slowly loosening the fill cap on top of the hydraulic oil tank.2. Drain the hydraulic oil from the hydraulic oil tank into a suitable container. The capacity of the hydraulic oil tank is 72 liters (19 U.S. gal). 3. Disconnect seven hose assemblies (3) from vibratory flushing valve (1). Cap and plug immediately.4. Remove two bolts (2), and remove the vibratory flushing valve from the hydraulic oil tank. 5. If necessary, remove shuttle valve (4) and charge relief valve (5) from vibratory flushing valve (1). Check the O-ring seals and back-up rings on the shuttle valve for wear or damage and replace if necessary. Check the O-ring seals on the charge relief valve for wear or damage and replace if necessary. When installing shuttle valve (4) in vibratory flushing valve (1), tighten the shuttle valve to a torque of 90 N m (65 lb ft).When installing charge relief valve (5) in the vibratory flushing valve, tighten the charge relief valve to a torque of 60 N m (45 lb ft). For installation of the vibratory flushing valve, reverse the removal steps. After the vibratory flushing valve has been installed, fill the hydraulic oil tank to the correct level. See the Operation & Maintenance Manual for the correct filling procedure. After installing the vibratory flushing valve and filling the hydraulic oil tank, perform the "Vibratory Pump Charge Relief Valve Pressure Test". Refer to the topic in CP-433C & CS-433C Vibratory System Systems Operation & Testing And Adjusting Service Manual, Form No. KENR2648.